What are the chances?

Another Covid-19 blog post for the non-expert, this time on what’s meant by test accuracy. Before we get started, a question to stimulate your curiosity. The percentage of the population infected with Covid-19 is uncertain but let’s assume it’s very low at 1 in a 1,000 people (yes I know it’s likely higher than thatContinue reading “What are the chances?”

… damn lies and statistics

The saying, “there are three kinds of lies: lies, damned lies, and statistics” is attributed to Mark Twain but may have originated from Benjamin Disraeli. It’s one of those phrases that has been misquoted more times than I can remember because in truth statistics is a branch of mathematics essential to understanding the world. StatisticsContinue reading “… damn lies and statistics”